超音速自由噴流の数値シュミレーション

Material type: 文書・図像類

Author: 石井, 隆次ほか

Publisher: 航空宇宙技術研究所

Publication date: 1987-11

Material Format: Digital

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Note (General)：: Axisymmetric underexpanded supersonic jets are investigated numerically. A time-depended technique of solution is applied to solve the Euler equations...

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Material Type: 文書・図像類
Title: 超音速自由噴流の数値シュミレーション
Author/Editor: 石井, 隆次
松田, 卓也
梅田, 吉邦
保田, 充彦
沢田, 恵介
嶋, 英志
Ishii, Ryuji
Matsuda, Takuya
Umeda, Yoshikuni
Yasuda, Atsuhiko
Sawada, Keisuke
Shima, Eiji
Author Heading: 石井, 隆次
松田, 卓也
梅田, 吉邦
保田, 充彦
沢田, 恵介
嶋, 英志
Ishii, Ryuji
Matsuda, Takuya
Umeda, Yoshikuni
Yasuda, Atsuhiko
Sawada, Keisuke
Shima, Eiji
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1987-11
Publication Date (W3CDTF): 1987-11
Alternative Title: Numerical Simulation of Supel:sonic Free-Jets
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-8
No. or year of volume/issue: 8
Volume: 8
Pages: 65-72
ISSN (Periodical Title): ISSN : 0289-260X
Text Language Code: jpn
Target Audience: 一般
Note (General): Axisymmetric underexpanded supersonic jets are investigated numerically. A time-depended technique of solution is applied to solve the Euler equations for a compressible ideal gas. The characteristics of Mach disk obtained by the calculations are compared with the experiments and a good agreement is obtained. It is shown that the global jet structure with a nearly regular shock pattern which is stable and steady itself, is destabilized by the vortex rings (Kelvin-Helmholtz roll-up) on the jet boundary. These vortices produce shocks inside the jet, which are convected downstream with eddies. This strongly suggests that a time-independent or a time-con-verged solution cannot be expected without making a suitable time-averaging of the time-dependent solutions. Other important instabilities are also investigated.
資料番号: NALSP0008009
レポート番号: NAL SP-8
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43262&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43262&item_no=1&attribute_id=31&file_no=1
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ